Metal packing.



A PATBNTED 001123,1906. f l

- N0.s33,9s2.

- R.KUBB.

v METAL PACKING.

FILE

l l 2 SHEETS SHE 1 AZ/7W IUNITED sraris' PATENT vfinition.

RUDOLPH KU'BE, OF NEW YORK, Y.

` METAL PACKING..

l packings for piston-1ods, and has for its objectto produce an elise-tive packing.

t-clneiiy consists in the arrangement of a plurality of sectional rings, the sections of '.Which are tightly pressed onto the circumference of the piston-rod by means of springactuated wedge-shaped forks.

My invention further consists in the construction, arrangement, and combination of parts which will be readily understood by reference to the description oi the accompa-- .nying drawings,-in which similar reference- 'numerals denote 'corresponding parts, and in vFigure 1 isa longitudinal section. of the smiling-box containing my new packing; Fig. 2, a crosssection through line :c of Fig. 1; Fig. 3, across-section through line yy of Fi 1 Fi 1, a cross-section through line ze of- 4ig. 1 ,f ig. 5, across-section through line uu of Fig. 1; Fig. 6, aperspective view of the `fork, and Fig: 7 is aperspcctive view of the sectional rings. p

1 denotes the piston-rod, 2 the stuffing-box, and 8 theordinary inner bushing. Loosely embracing the piston-.rod 1 is a ring L1, which -at'its inner and outer surfaces is provided f with a pluralit 'of pockets 5 6 to receive coil,

springs 7 8.

he rear surface of the ring 21is embossed to -form a short neck 8', around which a ring 9, covering the pockets 5, is mounted. The ring '9 is adapted to rest against the 'bushing 3 when the arts form# ing the metalpacking are assem led and to press with its outer surface on the springs' 7,

arranged in the ockets 5..

the packing proper.

. The outer su ace ofthe solid ring 4 is simif. larly embossed to forni a neck 10, and looselyf mounted up'on the latter, is a ring 11,V the outer surface of which is provided with wedgeshaped projections 12, forming a fork, Fig'J. -13 and v11 are sectional rings which form p The same are adapted to ytightly iitaround the piston-rod lwhen their sectionsare' assembled. Each ringy is vpreferably composed of three sections having the coil-springs 8 and s raient-ed oct. 23,1506. f

being made in a circle drawn tan entialljr to the circle of the piston-rod 1.

with the cut lines of their sections running in reverse directions. (See Fig.' 4;, in'which the cut lines of ring 13 are shown in full lines and those oi ring 14. in dotted lines.) The ring 13 `is adapted to rest against the neck 10 of the l' y somewhat larger than that of the projections to loosely engage the latter. T e excavations 17 of the ring 13 are adapted to register with those, 18, ofthe ring 14, when the rings are {itt-ed upon each other, andthe inner surface of two registering excavations forms" an inwardly directed incline which corresponds with the inner surface ofthe engaging wedge 12.

j When the packing parts are properly mounted, the fork 11 engages With its Wedge members 12 the excavations 17 18, whereby i the said members, being gressed'outward by i ing on the inclinesof the 'respective excavations 17 18 are caused to compress the sectional rings 13 .14 and to thus -form an effective packing. At the same time the coil-s ring 7 in the pockets 5 j by pressing against t e bottom of their pocketsl hold the neck 10 in tight contact` with the sectional'ring 13, displacement of the sections. The pockets 6, containing the springs 8, which number corres ond with that 'of the wedges, are arrange to lie in line with the latter. 19 is the gland that with a short neck is adaptedto it in the stuffing-box 2 and rest agamst the I j socket 16. 2 0'20 are wii'e rings partly'em- 'bedded in the inner surface of the land 'to allow an additional packing when t e gland is ti htly fastened to the llanges of the stuifin ox. 21 is the ordinary oil-discharge.

n addition to the above-described main packing there is inside the gland en auxiliary same parts as the main acking and ,which has the object to retain t e, steam that may.

equal shape and size, Figs. 4 and?, the'clits 5'5 T e rings.- 13` and 14 are adapted to fit upon one another preventing hereby a reoY metal packing 22,which is composed of the 

